This introduction opens up the field of studies of gay and lesbian adolescents, both with regard to past and present studies in the research literature, and by allusion to the new studies collected in this issue. Historical and crosscultural elements of the context of the "coming out" process are discussed. Four preconceptions of gay youth are critically examined, regarding their heterosexuality, inversion, stigma, and heterogeneity. The anthropological construct of life crisis "rites of passage" is utilized as a heuristic framework for deconstructing attitudes regarding change and constancy in homosexual adolescents. Aspects of age, sex, class, and related variables related to the form and content of the coming out process are then examined in the United States and other societies. Finally, the social problems of gay youth, AIDS and its impact in particular, are briefly considered. The author concludes with a plea for new and urgent research.